.container {
  position: relative;
  width: 100%;
  padding: 0;
}
.container .mask {
  position: absolute;
  top: 3rem;
  width: 100%;
  text-align: center;
  height: 2rem;
  line-height: 2rem;
  color: red;
}
.container form {
  margin-top: 0rem;
  padding: 2.5rem;
  padding-bottom: 1.5rem;
}
.container form input {
  width: 100%;
  background-color: #f2f2f2;
  border: 1px solid#CCCCCC;
  height: 2rem;
  border-radius: 10px;
  padding: 0.4rem;
  margin-bottom: 1rem;
}
.container form .sub {
  background-color: #CD0301;
  color: #FFFFFF;
  font-size: 1rem;
  margin-top: 0.5rem;
}
.container .serve {
  padding: 0 2.5rem;
}
.container .serve a {
  color: #3C3C3C;
  font-size: 0.75rem;
}
.container .serve .register {
  float: left;
}
.container .serve .forget {
  float: right;
}
